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Vernier caliper

Vernier caliper

In the manufacture of various carpentry, it becomes necessary to set the cutting depth on the machine, setting the saw blade higher or lower. Some machines have a special scale, others set the saw measuring its height with a ruler. Author homemade decided to make a device with which you can quickly and accurately measure the height of the saw blade or set the size of the guide. Basis fixtures is a digital caliper. The author posed and implemented the task of easy mounting and dismounting of the caliper to solve other problems with it.

Tools and materials:
-Digital vernier caliper;
-Neodymium magnet;
-Plywood;
-Fasteners;
-A screwdriver;
-Sandpaper;

Step 1: Design
First, the author of the home-made program in a special program made an altimeter project. You can download the project on this.
Step 2: Cutting Parts
Cut out of plywood, according to the patterns, part of the altimeter.

Step 3: Holes
A printed sheet with a template sticks to the cut parts. Drills and countersinks holes according to the marks of the template.

Step 4: Build
Collects parts by fastening them with screws.

Cleans with sandpaper.

Fastens the magnet.

In order to use the altimeter, it is necessary to fix the lower part of the caliper to the magnet.

Then set the altimeter to the surface of the table. Set the caliper depth gauge to the measuring point (e.g. saw blade). Reset the caliper. Now, when you move the measuring point, the caliper display will show how far it has been moved.

A few examples of using an altimeter.
Measuring the height of the blade.


Depth measurement.

Measuring the distance between the cutting disc and the guide.

You can watch the video in more detail.
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8 comments
Author
It is not clear how in such a design with such a magnet the parallelness of the working plane of the magnet with the plane on which it is mounted can be ensured.
But I don’t understand where such a conclusion is that it is not provided?
And since these conditions cannot be met accurately enough

These are only your assumptions, but even assuming that you are right, the error will be less than when measuring with a ruler.
It is not clear how in such a design with such a magnet the parallelness of the working plane of the magnet with the plane on which it is mounted can be ensured, as well as the parallelism of the caliper line and the edge of the base along which the caliper is mounted.
And since these conditions cannot be fulfilled accurately enough, instead of a barbell, it is no worse than using an ordinary metal ruler.
Author
"Fool to teach, time to lose"
I did not expect anything else from you.
Quote: pogranec
It’s enough for people to do nonsense. Criticize in essence, and do not suck from your finger.

"Fool to teach, time to lose " -Russian proverb. Good luck with your "nowhere." : cold_sweat:
Author
Do not distort and confuse meatballs and flies.
And where is the distortion here?
For settings, you need to install a magnet in the right place (for whom it is magnetic), adjust the meter, zero and only then measure it. When you can just immediately measure.
Well, if it’s difficult for you, then you’ll get to the site where they cross-stitch (although it’s also difficult there)
And no one talks about it, which means most of the masters (who have non-magnetic and they do not have such a magnet). will not do that.
Most of the masters are you? Or did you conduct a survey with whom?
The measurement is made together with the thickness of the saw,
So measure the thickness of the saw or it is difficult for you, oh yes one more action to add.
"The pig swore, there is shit to eat ..." I say to myself, I'm sorry.
You are so self-critical, did not expect such frankness from you.
It’s enough for deeds to engage in nonsense. Criticize essentially, and do not suck from your finger.
Quote: pogranec
Of course, this high-tech know-how is much better.

Do not distort and confuse meatballs and flies.

Quote: pogranec
From the settings you need only one button "reset".

For settings, you need to install a magnet in the right place (for whom it is magnetic), adjust the meter, zero and only then measure it. When you can just immediately measure.
Quote: pogranec
No one has claimed that they are all magnetic.

And no one talks about it, which means most of the masters (who have non-magnetic and they do not have such a magnet). will not do that.
Quote: pogranec
Everything matches carefully examine the picture.

Apparently, you do not understand this either. Measurement is carried out together with the thickness of the saw, which is already a mistake and the set size will actually be less by the size of the cut of the saw (study the photo and video).
"The pig swore, there is shit to eat ..." I say to myself, I'm sorry.
Author
Of course, this high-tech know-how is much better.
To measure, so many settings, inconvenience.
From the settings you need only one button "reset".
As a rule, this type of caliper is not magnetic.
No one has claimed that they are all magnetic.
do not meet the requirements (setting the size between the disc and the guide
Everything matches carefully examine the picture.
Perhaps this can suit someone, I am not. To measure, so many settings, inconvenience. As a rule, this type of caliper is not magnetic, (magnetic is much more expensive). Some measurement examples do not meet the requirements (setting the size between the disk and the guide, photo).

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